"Y" Pattern Piston Check Valves are generally used to protect pumps or similar equipment, allowing the flow in only one direction and preventing flow reversal due to back pressure. Also is used when a laminar flow and increased CV is desired.
This design provides a tight seal as well as a fast reaction to the closure impulse.
Metal seated check valves may not provide drop tight sealing when used in gas system or fluid system with low back flow pressure or fluids contaning particles.
Walworth's valves are designed and manufactured to meet the most stringent special requirements of various industries, including power generation, chemical and petrochemical, oil and gas, pulp and paper, mining, cryogenic and ship building applications.